Probability
PSAT Math · Flashcards
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QUESTION A bag has 3 red and 2 blue marbles. What is P(red) in one draw? QUESTION What is the formula for the expected value of a discrete variable with outcomes xi and probabilities pi? QUESTION What condition must hold for events A and B to be independent using conditional probability? Tap to flip before you grade ANSWER P(A∣B)=P(A). Independence means B doesn't change A's probability. Swipe → got it · swipe ← still learning